Connecting an ESP8266 to the Azure IoT Hub

This will be a series of toutorials documenting connection and communication with an ESP8266 through the Azure IoT Hub. This first toutorial will cover how to set up an MQTT connection between your ESP8266 and Azure. Hardware For this demo, I use the Velleman NODEMCU V2 LUA BASED ESP8266. I can't confirm that all the …

Columnar Transposition Cipher

Today I thought we could talk a little bit about Columnar Transposition Ciphers (hereby called CTC for short), let's start with discussing what a CTC is. A CTC is a simple encryption method using a shared key between the participants, where the characters in a clear text message gets shifted around in a specific predetermined …